PasswordOptions

Identity 中通过 PasswordOptions 进行密码配置。

PasswordOptions 源码：

public class PasswordOptions
{
    /// <summary>
    /// Gets or sets the minimum length a password must be. Defaults to 6.
    /// </summary>
    public int RequiredLength { get; set; } = 6;
    /// <summary>
    /// Gets or sets the minimum number of unique chars a password must comprised of. Defaults to 1.
    /// </summary>
    public int RequiredUniqueChars { get; set; } = 1;
    /// <summary>
    /// Gets or sets a flag indicating if passwords must contain a non-alphanumeric character. Defaults to true.
    /// </summary>
    /// <value>True if passwords must contain a non-alphanumeric character, otherwise false.</value>
    public bool RequireNonAlphanumeric { get; set; } = true;
    /// <summary>
    /// Gets or sets a flag indicating if passwords must contain a lower case ASCII character. Defaults to true.
    /// </summary>
    /// <value>True if passwords must contain a lower case ASCII character.</value>
    public bool RequireLowercase { get; set; } = true;
    /// <summary>
    /// Gets or sets a flag indicating if passwords must contain a upper case ASCII character. Defaults to true.
    /// </summary>
    /// <value>True if passwords must contain a upper case ASCII character.</value>
    public bool RequireUppercase { get; set; } = true;
    /// <summary>
    /// Gets or sets a flag indicating if passwords must contain a digit. Defaults to true.
    /// </summary>
    /// <value>True if passwords must contain a digit.</value>
    public bool RequireDigit { get; set; } = true;
}

配置 PasswordOptions：

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContextPool<AppDbContext>(
        options => options.UseSqlServer(_configuration.GetConnectionString("StudentDBConnection"))
    );
    services.Configure<IdentityOptions>(options =>
    {
        options.Password.RequiredLength = 6;
        options.Password.RequireNonAlphanumeric = false;
        options.Password.RequireUppercase = false;
    });
    ...
}